package card;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class CardDemo {
    public List<Card> buyCard(){
        List<Card> cardlist = new ArrayList<>();
        String[] suits = {"♥","♠","♦","♣"};
        for (int i = 0; i < 4; i++) {
            for (int j = 1; j <= 13 ; j++) {
                Card card = new Card(suits[i],j);
                cardlist.add(card);
            }
        }
        return cardlist;
    }
        public void shuffle(List<Card> cardlist){
            Random random = new Random();
            for (int i = cardlist.size() - 1; i > 0 ; i--) {
                int rand = random.nextInt(i);
                swap(cardlist,i,rand);
            }
        }
        private void swap(List<Card> cardList,int a,int b){
        Card flag = cardList.get(a);
        cardList.set(a,cardList.get(b));
        cardList.set(b,flag);
        }
        public void dealCards(List<Card> cardList){
        List<Card> hand1 = new ArrayList<>();
        List<Card> hand2 = new ArrayList<>();
        List<Card> hand3 = new ArrayList<>();
        List<List<Card>> hands = new ArrayList<>();
        hands.add(hand1);
        hands.add(hand2);
        hands.add(hand3);
            for (int i = 0; i < 5; i++) {
                for (int j = 0; j < 3; j++) {
                    Card card = cardList.remove(0);
                    hands.get(j).add(card);
                }
            }
            System.out.println("第一个人揭牌：");
            System.out.println(hand1);
            System.out.println("第一个人揭牌：");
            System.out.println(hand2);
            System.out.println("第一个人揭牌：");
            System.out.println(hand3);

        }
    
}
